`hs-classmates.com`

DNSSEC	⚠️ Not signed
NS	`pdns3.ultradns.org` ⚠️ Not in zone NS records
		A	2610:a1:1015::1^{🇺🇸 MAINT-ID-120082610:a1:1015::/48 Neustar}
			PTR	`pdns3.ultradns.org`
		A	199.7.68.1^{🇺🇸 MAINT-ID-12008199.7.68.0/24 Neustar}
			PTR	`pdns3.ultradns.org`
NS	`pdns4.ultradns.org` ⚠️ Not in zone NS records
		A	2001:502:4612::1^{🇺🇸 MAINT-ID-120082001:502:4612::/48 Neustar}
			PTR	`pdns4.ultradns.org`
		A	199.7.69.1^{🇺🇸 MAINT-ID-12008199.7.69.0/24 Neustar}
			PTR	`pdns4.ultradns.org`

`com`

	DNSSEC	🔒 Signed (DS record present)
	NS	`a.gtld-servers.net` ⭐
	NS	`b.gtld-servers.net`
	NS	`c.gtld-servers.net`
	NS	`d.gtld-servers.net`
	NS	`e.gtld-servers.net`
	NS	`f.gtld-servers.net`
	NS	`g.gtld-servers.net`
	NS	`h.gtld-servers.net`
	NS	`i.gtld-servers.net`
	NS	`j.gtld-servers.net`
	NS	`k.gtld-servers.net`
	NS	`l.gtld-servers.net`
	NS	`m.gtld-servers.net`
	SOA	`a.gtld-servers.net`nstld@verisign-grs.com serial=1774443967

Same first word

hs-classmates.com

DNS History

6 records (2 active, 4 former)

○NSns1.pcdoc.bz2008-03-19 → 2008-03-19 · 3 obs

● 2008-03-19 03:30:36
○ 2015-06-06 15:02:36
○ 2026-03-25 13:21:20

○NSns2.pcdoc.bz2008-03-19 → 2008-03-19 · 3 obs

● 2008-03-19 03:30:36
○ 2015-06-06 15:02:36
○ 2026-03-25 13:21:20

●NSpdns3.ultradns.org2026-02-23 → 2026-03-25 · 3 obs

○ 2015-06-06 15:02:36
● 2026-02-23 13:01:18
● 2026-03-25 13:21:20

●NSpdns4.ultradns.org2026-02-23 → 2026-03-25 · 3 obs

○ 2015-06-06 15:02:36
● 2026-02-23 13:01:18
● 2026-03-25 13:21:20

○MXmail.hs-classmates.com2008-03-19 → 2008-03-19 · 3 obs

● 2008-03-19 03:30:36
○ 2015-06-06 15:02:36
○ 2026-03-25 13:21:20

○A70.169.155.1402008-03-19 → 2008-03-19 · 3 obs

● 2008-03-19 03:30:36
○ 2015-06-06 15:02:36
○ 2026-03-25 13:21:20

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	i.gtld-servers.net, l.gtld-servers.net, d.gtld-servers.net, j.gtld-servers.net...	-
hs-classmates.com	pdns3.ultradns.org, pdns4.ultradns.org	-

✅ Authoritative Response

Server:199.7.68.1

NS records: pdns3.ultradns.org, pdns4.ultradns.org

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for hs-classmates.com (unsigned zone)

⏱️ Timing

Total: 285ms | Queries: -

📄 Records

Type	Count	Sample Data

Analysis

Name Servers

hs-classmates.com's delegation is to two name servers pdns3.ultradns.org and pdns4.ultradns.org.

hs-classmates.com uses the same name server setup as other domains, for example classmates.co and xlassmate.com.

hs-classmates.com at least partially shares its name servers with other domains, for instance scienceviewsthenews.net, e-dupont.net, counsellor.com, bloomberg-hr.com and skipr-gastvrijheid.nl.

These name servers are commonly used with pdns1.ultradns.net, pdns5.ultradns.info, pdns2.ultradns.net, pdns6.ultradns.co.uk, udns1.ultradns.net, dns1.p01.nsone.net, dns2.p01.nsone.net, dns3.p01.nsone.net, dns4.p01.nsone.net and udns2.ultradns.net.

Host names with two IP numbers: pdns3.ultradns.org points to 2610:a1:1015::1 and 199.7.68.1; pdns4.ultradns.org points to 2001:502:4612::1 and 199.7.69.1

hs-classmates.com - robtex.com